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Finding the Fourth Proportional to 282,547.63, 389,915.88 and 155,231.42

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Solution

The fourth proportional to 282,547.63, 389,915.88 and 155,231.42 is: 214,219.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,547.63 : 389,915.88 = 155,231.42 : x
  2. Step 2: Convert to fraction form
    282,547.63/389,915.88 = 155,231.42/x
  3. Step 3: Cross multiply
    282,547.63x = 389,915.88 × 155,231.42
  4. Step 4: Simplify right side
    282,547.63x = 60,527,195,732.95
  5. Step 5: Solve for x
    x = 60,527,195,732.95/282,547.63
  6. Step 6: Final answer
    x = 214,219.45

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